. >>> police in suburban detroit are looking into a new claim about the location of jimmy hoffa's body. they will take soil samples from the ground beneath a driveway after a man told them he believes he witnessed hoffa's burial 35 years ago. there have been a number of searches for hoffa since the teamster leader disappeared in 1975. an enduring mystery there. wow. >>> what has four wheels and fleas? well, take a look at this. dogs competing in stroller races in a california backyard. other dogs are their hapless passengers. the four canines live with the same california family. >> they need more maneuverable strollers there. but that's not all they can do. this talented crew, races on scooters and kiddie cars with more crashes than bumpers car. their owner says they're all total clowns and having fun. look at those wagging tails. you can see, the proof is in the pudding. >> that is cute video. >>> all right. coming up next, she made magic and millions, almost a billion from the harry potter series for kids. but now will j.k. rowling reel in their parents. we'll hear from the author a